CANCELLED: Zernike Institute Colloquium: Prof. dr. R. Wiesendanger, Institut für Angewandte Physik und Zentrum für Mikrostruckturforschung, Universität Hamburg, Hamburg, Germany: Exploring the Spin in the Nanoworld
|02 December 2010||FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Prof. dr. Roland Wiesendanger|
|Affiliation:||Institut für Angewandte Physik und Zentrum für Mikrostruckturforschung, Universität Hamburg, Hamburg, Germany|
|Title:||Exploring the Spin in the Nanoworld|
Spin-Polarized Scanning Tunneling Microscopy (SP-STM) provides new insight into spin structures at a length scale and a sensitivity level which are inaccessible by other magnetic-sensitive measurement techniques. The combination of atomic resolution in direct space, single spin sensitivity, and high energy resolution nowadays offers unique possibilities for probing spin-dependent states and interactions in natural or artificially created nanostructures. Moreover, spin-state manipulation based on spin-current induced switching and spin-state read-out by SP-STM methods offers another novel exciting research direction. Ultimately, a new type of magnetic recording technology might be developed based on spin-state writing and read-out rather than using magnetic stray fields. While the detection of magnetic stray fields becomes more and more difficult as the magnetic bit size is further reduced, the concept of spin manipulation and spin-state determination has already been demonstrated down to the atomic level using SP-STM based techniques. Moreover, the recent demonstration of atomic-scale spin logic devices based on the combination of atomic manipulation and spin-sensitive read-out by SP-STM offers great potential for future information technologies using spins rather than charges for computation and information transmission at the atomic level.
|Last modified:||12 September 2014 11.22 a.m.|